package com.mlethe.library.utils;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;

import java.util.List;

public class MapUtil {

    public static double pi = 3.1415926535897932384626;
    public static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
    public static double a = 6378245.0;
    public static double ee = 0.00669342162296594323;

    /**
     * 百度地图包名
     */
    public static final String BAIDU_MAP_PACKAGE_NAME = "com.baidu.BaiduMap";
    /**
     * 高德地图包名
     */
    public static final String GAODE_MAP_PACKAGE_NAME = "com.autonavi.minimap";
    /**
     * 腾讯地图包名
     */
    public static final String TENCENT_MAP_PACKAGE_NAME = "com.tencent.map";

    /**
     * 检查手机上是否安装了指定的软件
     *
     * @param context
     * @param packageName
     * @return boolean
     */
    public static boolean packageNameExist(Context context, String packageName) {
        final PackageManager packageManager = context.getPackageManager();
        List<PackageInfo> packageInfos = packageManager.getInstalledPackages(0);
        for (PackageInfo packageInfo : packageInfos) {
            if (packageInfo != null && packageInfo.packageName != null && packageInfo.packageName.equals(packageName)) {
                return true;
            }
        }
        return false;
    }

    /**
     * 百度地图导航
     *
     * @param desAddr 地址名称
     * @param lat     纬度
     * @param lng     经度
     */
    public static boolean navigationBD(Context context, String desAddr, double lat, double lng) {
        String url = "baidumap://map/direction?destination=name:" + desAddr + "|latlng:" + lat + "," + lng + "&mode=drivingion&coord_type=gcj02&src=com.baidu.BaiduMap";
        Intent intent = new Intent();
        intent.setData(Uri.parse(url));
        if (packageNameExist(context, BAIDU_MAP_PACKAGE_NAME)) {
            context.startActivity(intent);
            return true;
        }
        return false;
    }

    /**
     * 高德地图导航
     *
     * @param desAddr 地址名称
     * @param lat     纬度
     * @param lng     经度
     */
    public static boolean navigationGD(Context context, String desAddr, double lat, double lng) {
        String url = "amapuri://route/plan/?sourceApplication=" + getPackageName(context) + "&dlat=" + lat + "&dlon=" + lng + "&dname=" + desAddr + "&dev=0&t=0";
        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.setPackage("com.autonavi.minimap");
        intent.setData(Uri.parse(url));
        if (packageNameExist(context, GAODE_MAP_PACKAGE_NAME)) {
            context.startActivity(intent);
            return true;
        }
        return false;
    }

    /**
     * 腾讯地图导航
     *
     * @param desAddr 地址名称
     * @param lat     纬度
     * @param lng     经度
     */
    public static boolean navigationTX(Context context, String desAddr, double lat, double lng) {
        String url = "qqmap://map/routeplan?type=drive&to=" + desAddr + "&tocoord=" + lat + "," + lng + "&referer=" + getPackageName(context);
        Intent intent = new Intent();
        intent.setData(Uri.parse(url));
        if (packageNameExist(context, TENCENT_MAP_PACKAGE_NAME)) {
            context.startActivity(intent);
            return true;
        }
        return false;
    }

    private static String getPackageName(Context context) {
        if (context == null) {
            return null;
        }
        return context.getApplicationContext().getPackageName();
    }

    public static double transformLat(double x, double y) {
        double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y
                + 0.2 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
        ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
        return ret;
    }

    public static double transformLon(double x, double y) {
        double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1
                * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
        ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0
                * pi)) * 2.0 / 3.0;
        return ret;
    }

    public static double[] transform(double lat, double lon) {
        if (outOfChina(lat, lon)) {
            return new double[]{lat, lon};
        }
        double dLat = transformLat(lon - 105.0, lat - 35.0);
        double dLon = transformLon(lon - 105.0, lat - 35.0);
        double radLat = lat / 180.0 * pi;
        double magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        double sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        double mgLat = lat + dLat;
        double mgLon = lon + dLon;
        return new double[]{mgLat, mgLon};
    }

    /**
     * 判断坐标是否是国外的坐标
     *
     * @param lat 纬度
     * @param lon 经度
     * @return true 是 false 不是
     */
    public static boolean outOfChina(double lat, double lon) {
        if (lon < 72.004 || lon > 137.8347) {
            return true;
        }
        if (lat < 0.8293 || lat > 55.8271) {
            return true;
        }
        return false;
    }

    /**
     * GPS(WGS-84) 转为 火星坐标系 (GCJ-02)
     *
     * @param lat 纬度
     * @param lon 经度
     * @return
     */
    public static double[] gps84ToGcj02(double lat, double lon) {
        if (outOfChina(lat, lon)) {
            return new double[]{lat, lon};
        }
        double dLat = transformLat(lon - 105.0, lat - 35.0);
        double dLon = transformLon(lon - 105.0, lat - 35.0);
        double radLat = lat / 180.0 * pi;
        double magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        double sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        double mgLat = lat + dLat;
        double mgLon = lon + dLon;
        return new double[]{mgLat, mgLon};
    }

    /**
     * 火星坐标系 (GCJ-02) 转为 GPS(WGS-84)
     *
     * @param lat 纬度
     * @param lon 经度
     * @return
     */
    public static double[] gcj02ToGps84(double lat, double lon) {
        double[] gps = transform(lat, lon);
        double longitude = lon * 2 - gps[1];
        double latitude = lat * 2 - gps[0];
        return new double[]{latitude, longitude};
    }

    /**
     * 火星坐标系 (GCJ-02) 转为 百度坐标系 (BD-09)
     *
     * @param lat 纬度
     * @param lon 经度
     */
    public static double[] gcj02ToBd09(double lat, double lon) {
        double x = lon, y = lat;
        double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);
        double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);
        double tempLon = z * Math.cos(theta) + 0.0065;
        double tempLat = z * Math.sin(theta) + 0.006;
        double[] gps = {tempLat, tempLon};
        return gps;
    }

    /**
     * 百度坐标系 (BD-09) 转为 火星坐标系 (GCJ-02)
     *
     * @param lat 纬度
     * @param lon 经度
     */
    public static double[] bd09ToGcj02(double lat, double lon) {
        double x = lon - 0.0065, y = lat - 0.006;
        double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
        double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
        double tempLon = z * Math.cos(theta);
        double tempLat = z * Math.sin(theta);
        double[] gps = {tempLat, tempLon};
        return gps;
    }

    /**
     * GPS(WGS-84) 转为 百度坐标系 (BD-09)
     *
     * @param lat 纬度
     * @param lon 经度
     * @return
     */
    public static double[] gps84ToBd09(double lat, double lon) {
        double[] gcj02 = gps84ToGcj02(lat, lon);
        double[] bd09 = gcj02ToBd09(gcj02[0], gcj02[1]);
        return bd09;
    }

    /**
     * 百度坐标系 (BD-09)转为 GPS(WGS-84)
     *
     * @param lat 纬度
     * @param lon 经度
     * @return
     */
    public static double[] bd09ToGps84(double lat, double lon) {
        double[] gcj02 = bd09ToGcj02(lat, lon);
        double[] gps84 = gcj02ToGps84(gcj02[0], gcj02[1]);
        return gps84;
    }
}
